Python regex

[Andrew Rekdal]

I hope posting is ok here for this question...

I am attempting to extract the text from a CSS comment using 're' such as...

string = "/* CSS comment /*"
exp = "[^(/*)].*[^(*/)] "

p = re.compile(exp)
q = p.search(string)
r = q.group()

print r

although this works to a degree... I know the within the brackets everything
is taken literally so the pattern
I am to negating is "(/*)". ie. includes the parenthesis.

So my question is...

Is there a way to negate a pattern that is more than on character long? eg.
where rather than saying if forward slash OR astrisk appear..negate.

I would be saying if parenthesis AND asterisk appear in this order... negate


-- Andrew

 

[Andrew Rekdal]

made error on last line... read as...

I would be saying if forward-slash AND asterisk appear in this order...
negate

--
-- Andrew

I hope posting is ok here for this question...

I am attempting to extract the text from a CSS comment using 're' such
as...

string = "/* CSS comment /*"
exp = "[^(/*)].*[^(*/)] "

p = re.compile(exp)
q = p.search(string)
r = q.group()

print r

although this works to a degree... I know the within the brackets
everything is taken literally so the pattern
I am to negating is "(/*)". ie. includes the parenthesis.

So my question is...

Is there a way to negate a pattern that is more than on character long?
eg. where rather than saying if forward slash OR astrisk appear..negate.

I would be saying if parenthesis AND asterisk appear in this order...
negate


-- Andrew

 

[Arnaud Delobelle]

I hope posting is ok here for this question...

I am attempting to extract the text from a CSS comment using 're' such as....

string = "/* CSS comment /*"
exp = "[^(/*)].*[^(*/)] "

p = re.compile(exp)
q = p.search(string)
r = q.group()

print r

although this works to a degree... I know the within the brackets everything
is taken literally so the pattern
I am to negating is "(/*)". ie. includes the parenthesis.

So my question is...

Is there a way to negate a pattern that is more than on character long? eg..
where rather than saying if forward slash OR astrisk appear..negate.

I would be saying if parenthesis AND asterisk appear in this order... negate

-- Andrew

There would be many ways to do this. One:

HTH

 

[Andrew Rekdal]

--
-- Andrew

I hope posting is ok here for this question...

I am attempting to extract the text from a CSS comment using 're' such
as...

string = "/* CSS comment /*"
exp = "[^(/*)].*[^(*/)] "

p = re.compile(exp)
q = p.search(string)
r = q.group()

print r

although this works to a degree... I know the within the brackets
everything
is taken literally so the pattern
I am to negating is "(/*)". ie. includes the parenthesis.

So my question is...

Is there a way to negate a pattern that is more than on character long?
eg.
where rather than saying if forward slash OR astrisk appear..negate.

I would be saying if parenthesis AND asterisk appear in this order...
negate

-- Andrew

There would be many ways to do this. One:

HTH

--
Arnaud

Arnaud,

in your expression above..

what does the 'r' do?

-- andrew

 

[Arnaud Delobelle]

in your expression above..


what does the 'r' do?

It means the literal is a 'raw string' :

Hi
there!

If you haven't done so already, I suggest reading the tutorial. Here
is a link to the relevant section on strings:

http://docs.python.org/tut/node5.html#SECTION005120000000000000000

 

[Adonis Vargas]

I hope posting is ok here for this question...

I am attempting to extract the text from a CSS comment using 're' such as...

string = "/* CSS comment /*"
exp = "[^(/*)].*[^(*/)] "

p = re.compile(exp)
q = p.search(string)
r = q.group()

print r

although this works to a degree... I know the within the brackets everything
is taken literally so the pattern
I am to negating is "(/*)". ie. includes the parenthesis.

So my question is...

Is there a way to negate a pattern that is more than on character long? eg.
where rather than saying if forward slash OR astrisk appear..negate.

I would be saying if parenthesis AND asterisk appear in this order... negate


-- Andrew

Have you looked into this library:

http://cthedot.de/cssutils/

May help you, if you are trying to achieve something. If your doing it
as an exercise then I can not help you, I avoid regex like the plague
(but thats just me).

Hope this helps.

Adonis Vargas